[Unity] vscode .net framework C# 에러문제

[info]: OmniSharp.Stdio.Host
        Starting OmniSharp on MacOS 10.15.6 (x64)
[info]: OmniSharp.Services.DotNetCliService
        DotNetPath set to dotnet
[info]: OmniSharp.MSBuild.Discovery.MSBuildLocator
        Located 1 MSBuild instance(s)
            1: StandAlone 16.8.0 - "/Users/jangbeom-seok/.vscode/extensions/ms-dotnettools.csharp-1.23.1/.omnisharp/1.37.0/omnisharp/.msbuild/Current/Bin"
[info]: OmniSharp.MSBuild.Discovery.MSBuildLocator
        MSBUILD_EXE_PATH environment variable set to '/Users/jangbeom-seok/.vscode/extensions/ms-dotnettools.csharp-1.23.1/.omnisharp/1.37.0/omnisharp/.msbuild/Current/Bin/MSBuild.exe'
[info]: OmniSharp.MSBuild.Discovery.MSBuildLocator
        Registered MSBuild instance: StandAlone 16.8.0 - "/Users/jangbeom-seok/.vscode/extensions/ms-dotnettools.csharp-1.23.1/.omnisharp/1.37.0/omnisharp/.msbuild/Current/Bin"
            CscToolExe = csc.exe
            MSBuildToolsPath = /Users/jangbeom-seok/.vscode/extensions/ms-dotnettools.csharp-1.23.1/.omnisharp/1.37.0/omnisharp/.msbuild/Current/Bin
            CscToolPath = /Users/jangbeom-seok/.vscode/extensions/ms-dotnettools.csharp-1.23.1/.omnisharp/1.37.0/omnisharp/.msbuild/Current/Bin/Roslyn
            BypassFrameworkInstallChecks = true
            MSBuildExtensionsPath = /Users/jangbeom-seok/.vscode/extensions/ms-dotnettools.csharp-1.23.1/.omnisharp/1.37.0/omnisharp/.msbuild
[info]: OmniSharp.Cake.CakeProjectSystem
        Detecting Cake files in '/Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS'.
[info]: OmniSharp.Cake.CakeProjectSystem
        Could not find any Cake files
[info]: OmniSharp.MSBuild.ProjectSystem
        Detecting projects in '/Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Owao_IOS.sln'.
[info]: OmniSharp.MSBuild.ProjectManager
        Queue project update for '/Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Queue project update for '/Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp-firstpass.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Queue project update for '/Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp-Editor.csproj'
[info]: OmniSharp.MSBuild.ProjectManager
        Queue project update for '/Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp-Editor-firstpass.csproj'
[info]: OmniSharp.Script.ScriptProjectSystem
        Detecting CSX files in '/Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS'.
[info]: OmniSharp.Script.ScriptProjectSystem
        Could not find any CSX files
[info]: OmniSharp.WorkspaceInitializer
        Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.CSharpFormattingWorkspaceOptionsProvider, Order: 0
[info]: OmniSharp.MSBuild.ProjectManager
        Loading project: /Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp.csproj
[info]: OmniSharp.WorkspaceInitializer
        Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.RenameWorkspaceOptionsProvider, Order: 100
[info]: OmniSharp.WorkspaceInitializer
        Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.ImplementTypeWorkspaceOptionsProvider, Order: 110
[info]: OmniSharp.WorkspaceInitializer
        Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.BlockStructureWorkspaceOptionsProvider, Order: 140
[info]: OmniSharp.WorkspaceInitializer
        Configuration finished.
[info]: OmniSharp.Stdio.Host
        Omnisharp server running using Stdio at location '/Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS' on host 20273.
[fail]: OmniSharp.MSBuild.ProjectLoader
        The reference assemblies for .NETFramework,Version=v4.7.1 were not found. To resolve this, install the Developer Pack (SDK/Targeting Pack) for this framework version or retarget your application. You can download .NET Framework Developer Packs at https://aka.ms/msbuild/developerpacks
[warn]: OmniSharp.MSBuild.ProjectManager
        Failed to load project file '/Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp.csproj'.
/Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp.csproj
/Users/jangbeom-seok/.vscode/extensions/ms-dotnettools.csharp-1.23.1/.omnisharp/1.37.0/omnisharp/.msbuild/Current/Bin/Microsoft.Common.CurrentVersion.targets(1178,5): Error: The reference assemblies for .NETFramework,Version=v4.7.1 were not found. To resolve this, install the Developer Pack (SDK/Targeting Pack) for this framework version or retarget your application. You can download .NET Framework Developer Packs at https://aka.ms/msbuild/developerpacks

[info]: OmniSharp.MSBuild.ProjectManager
        Loading project: /Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp-firstpass.csproj
[fail]: OmniSharp.MSBuild.ProjectLoader
        The reference assemblies for .NETFramework,Version=v4.7.1 were not found. To resolve this, install the Developer Pack (SDK/Targeting Pack) for this framework version or retarget your application. You can download .NET Framework Developer Packs at https://aka.ms/msbuild/developerpacks
[warn]: OmniSharp.MSBuild.ProjectManager
        Failed to load project file '/Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp-firstpass.csproj'.
/Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp-firstpass.csproj
/Users/jangbeom-seok/.vscode/extensions/ms-dotnettools.csharp-1.23.1/.omnisharp/1.37.0/omnisharp/.msbuild/Current/Bin/Microsoft.Common.CurrentVersion.targets(1178,5): Error: The reference assemblies for .NETFramework,Version=v4.7.1 were not found. To resolve this, install the Developer Pack (SDK/Targeting Pack) for this framework version or retarget your application. You can download .NET Framework Developer Packs at https://aka.ms/msbuild/developerpacks

[info]: OmniSharp.MSBuild.ProjectManager
        Loading project: /Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp-Editor.csproj
[fail]: OmniSharp.MSBuild.ProjectLoader
        The reference assemblies for .NETFramework,Version=v4.7.1 were not found. To resolve this, install the Developer Pack (SDK/Targeting Pack) for this framework version or retarget your application. You can download .NET Framework Developer Packs at https://aka.ms/msbuild/developerpacks
[warn]: OmniSharp.MSBuild.ProjectManager
        Failed to load project file '/Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp-Editor.csproj'.
/Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp-Editor.csproj
/Users/jangbeom-seok/.vscode/extensions/ms-dotnettools.csharp-1.23.1/.omnisharp/1.37.0/omnisharp/.msbuild/Current/Bin/Microsoft.Common.CurrentVersion.targets(1178,5): Error: The reference assemblies for .NETFramework,Version=v4.7.1 were not found. To resolve this, install the Developer Pack (SDK/Targeting Pack) for this framework version or retarget your application. You can download .NET Framework Developer Packs at https://aka.ms/msbuild/developerpacks

[info]: OmniSharp.MSBuild.ProjectManager
        Loading project: /Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp-Editor-firstpass.csproj
[fail]: OmniSharp.MSBuild.ProjectLoader
        The reference assemblies for .NETFramework,Version=v4.7.1 were not found. To resolve this, install the Developer Pack (SDK/Targeting Pack) for this framework version or retarget your application. You can download .NET Framework Developer Packs at https://aka.ms/msbuild/developerpacks
[warn]: OmniSharp.MSBuild.ProjectManager
        Failed to load project file '/Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp-Editor-firstpass.csproj'.
/Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp-Editor-firstpass.csproj
/Users/jangbeom-seok/.vscode/extensions/ms-dotnettools.csharp-1.23.1/.omnisharp/1.37.0/omnisharp/.msbuild/Current/Bin/Microsoft.Common.CurrentVersion.targets(1178,5): Error: The reference assemblies for .NETFramework,Version=v4.7.1 were not found. To resolve this, install the Developer Pack (SDK/Targeting Pack) for this framework version or retarget your application. You can download .NET Framework Developer Packs at https://aka.ms/msbuild/developerpacks

[fail]: OmniSharp.MSBuild.ProjectManager
        Attempted to update project that is not loaded: /Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp.csproj
[fail]: OmniSharp.MSBuild.ProjectManager
        Attempted to update project that is not loaded: /Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp-firstpass.csproj
[fail]: OmniSharp.MSBuild.ProjectManager
        Attempted to update project that is not loaded: /Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp-Editor.csproj
[fail]: OmniSharp.MSBuild.ProjectManager
        Attempted to update project that is not loaded: /Users/jangbeom-seok/Desktop/Project/Project_Owao/Owao_IOS/Assembly-CSharp-Editor-firstpass.csproj

유니티를 새로 설치하고 이런에러가 뜨면서 코드힌트라든지 레퍼런스가 뜨지 않는 경우가 생긴다.

구글링하다보니 Mono설정문제인듯 하다.

참고 : github.com/OmniSharp/omnisharp-vscode/issues/3063

 

세팅 검색창에 mono라고 검색해 보면 Omnisharp: Use Global Mono 라는 부분이 나오는데 auto에서 always로 바꿔주면 에러가 사라진다.

재시작 해주면 정상 작동 한다.